the act of moving forward (as toward a goal)
- forward motion - onward motion
the group action of a collection of people or animals or vehicles moving ahead in more or less regular formation
"processions were forbidden"
(theology) the origination of the Holy Spirit at Pentecost
"the emanation of the Holy Spirit"
"the rising of the Holy Ghost"
"the doctrine of the procession of the Holy Spirit from the Father and the Son"